Billet Specialties Serpentine Conversion - SBC - Top Mount Alt, AC, & P__S User Manual
Billet Specialties For the car
Billet Specialties, Inc. 500 Shawmut Avenue La Grange, Illinois 60526 PH 800.245.5382 Fax 708.588.7181 www.billetspecialties.com
Recommended Belt: Goodyear 6 Rib #4060555 (55.5”) or Dayco #5060555 (55.5”)
1) Disconnect Battery; remove all existing accessory drive brackets and components from motor.
2) Remove water pump, scrape away any existing gasket material.
3) Clean and prep threads in cylinder heads, use a 3/8-16 thread chaser if necessary. Thread
Chasers are available at your local auto parts store or tool dealer and are different from a tread
cutting tool.
4) Thread the 3/8-16 x 2-1/2” threaded studs from the power steering skin board into the
driver side water pump mount holes and tighten. The studs can easily be tightened by threading
two 3/8-16 nuts (not included) onto the stud and tighten them against each other to act as a drive
nut. Apply RTV sealer to engine block and water pump.
5) Install gaskets and then water pump. There should be no more than 5/8” of thread left exposed
on studs. If more than 5/8” thread is showing, remove stud(s) and clean out threads then reinstall
threaded stud(s) and check again. Apply anti-seize to the exposed threads on the studs. Also
apply anti-seize to the threads of all the remaining fasteners at this time.
6) Thread the two 1-1/2” long spacer nuts (from the power steering kit) onto the exposed studs
with the hex end out. To complete the water pump installation also install the passenger side
water pump bolts at this time. Tighten firmly.
7) Place the idler stand-off into the compressor bracket. Note: Idler stand off has an oval key that
fits into like receptacle on bracket. Thread the 3/8-16 x 2-1/4” socket head cap screw through the
back of the compressor bracket into the idler stand off bracket and tighten. This fastener will be
torqued following the next step.
8) Attach the compressor bracket to the driver side cylinder head by threading a
3/8-16 x 3/4” socket head cap screw through the bottom left hole in compressor bracket and into
cylinder head. Next thread a 3/8-16 x 3/4" socket head cap screw through the right hole in
compressor bracket and into the cylinder head. Tighten both firmly (46ft/lbs each). At this time
tighten the idler stand off bolt from step 7 (46 ft/lbs).
9) Attach the turnbuckle assembly to the remaining hole in compressor bracket by threading a
3/8-16 x 1-3/4” socket head cap screw through the turnbuckle assembly and 3/16” load washer
and compressor bracket and into the cylinder head. Tighten firmly
(46 ft/lbs). Swing turnbuckle to rest on water pump.
10) At this time assemble the power steering bracket and pump assembly from the instructions
provided with the power steering bracket beginning at step 7.
Return to step 10 on this sheet when complete.
11) Install the compressor by aligning the compressor bosses with the compressor bracket,
thread the 3/8-16 x 5” socket head cap screw through the compressor and bracket. Thread the
3/8-16 nut and 3/8” lock washer onto the back and finger tighten.
12) Thread the 3/8-16 x 1” socket head cap screw through the front compressor ear (see figure)
and into the 1-3/4” long front spacer nut and tighten. Swing the compressor up to match up the
front spacer nut with the turnbuckle assembly, thread the 3/8-16 x 2-1/2” socket head cap screw
through the rear compressor ear (see figure) and through the
1-1/16 spacer and turnbuckle assembly into the front spacer nut and tighten.
13) Place the stainless bearing sleeve into one of the 2-1/2” diameter idler pulleys (long end of
the sleeve goes into the bearing from the backside of the pulley). Insert assembly into the upper
hole of the power steering bracket. Thread the 3/8-16 x 2-1/2” socket head cap screw with
3/8” x 7/8” OD stainless washer through the pulley and sleeve into the power steering bracket
and tighten. Install the pulley cover with three #10-32 x 1/2" socket head cap screws and tighten.
Install the compressor cover with three
1/4-20 x 3/4” socket head cap screws and tighten.
14) At this time install the alternator bracket and alternator (refer to instruction sheet provided
with bracket). Return to step 15 on this sheet after installation.
15) Install the alternator pulley with cover, water pump pulley with cover, and crankshaft pulley
using the instructions provided with the pulley kit. Return to step 16 on this sheet when complete.
16) Route belt as seen in figure 2. Place stainless bearing sleeve into 2-1/4” dia. idler pulley (long
end of the sleeve goes into the bearing from backside of pulley). Place idler pulley on belt and
push belt and pulley into position to line up with compressor bracket boss. Thread 3/8-16 x 2-1/4
socket head cap screw with a 3/8” x 7/8” OD stainless washer through the pulley and sleeve into
the 1-1/2” aluminum idler stand off. Tighten firmly (46 ft/lbs). Install pulley cover with three
#10-32 x 1/2” socket head cap screws and tighten.
17) Adjust belt tension by twisting the two turnbuckle assemblies by hand until proper belt tension
is achieved. Do not over-tighten belt! Serious damage may occur to the accessory drive bearings
resulting in premature wear. Tighten jam nuts on turnbuckle; tighten alternator socket head cap
screws (46 ft/lbs). Tighten compressor socket head screws (46 ft/lbs) and compressor swivel bolt
and nut with lock washer firmly.
Re-check belt tension.
18) Reconnect electrical and install A/C lines and fittings. Caution: Do not connect A/C
compressor electrical until system is properly charged. Test run motor and re-check belt tension
adjust if necessary. Re-check belt tension after 100 miles.
Tools Required:
5/32" Allen wrench
1/4" Allen wrench
3/16" Allen wrench
5/16” Allen wrench
1/2” Open-end wrench
9/16” Open-end wrench
3/8-16 Thread chaser (If necessary)
New water pump to engine block gaskets
RTV silicone sealer
Anti-seize
FM2113PC/FM2114PC SBC Top Mount Alt, w/ A/C & Power Steering